Hot longitudinal cutting production process for steel plate
A production process and steel plate technology, which is applied in the field of steel plate thermal slitting process, can solve problems such as flashes, pits, steel plate incisions that cannot be cut directly, and edge quality of steel plates that are not ideal
Active Publication Date: 2021-12-07
CISDI RES & DEV CO LTD
View PDF11 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002]
At present, the longitudinal cutting of the steel plate is usually carried out in the cold state. This is because the incision of the steel plate in the hot state cannot be cut directly, or edge defects such as flashes and pits are easy to occur during cutting, but the longitudinal cutting of the steel plate in the hot state It can be carried out directly after the steel plate rolling is completed, and the waste heat of rolling can be fully utilized, and the efficiency is higher; The edge quality of the post-formed steel plate is not ideal
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0028] Hot slitting production technology of steel plate of the present invention, see Figure 9 , including the following steps in sequence:
[0029] S1, the centering process, so that the cutting position is adjusted to the predetermined position;
[0030] S2, head cutting process, refer to figure 1 , cutting the head of the steel plate, cutting off the a3 area of the head of the steel plate A;
[0031] S4, heat replenishment process, performing partial heat replenishment on the surface of the steel plate corresponding to the cutting position or performing overall heat replenishment on the surface of the steel plate;
[0032] S5, mechanical pre-slitting process, refer to Figure 3 to Figure 5 , the steel pla...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a hot longitudinal cutting production process for a steel plate. The hot longitudinal cutting production process comprises a centering procedure, a head cutting procedure, a punching procedure, a heat supplementing procedure, a mechanical pre-slitting procedure, a cutting procedure and an edge crushing procedure which are sequentially carried out, wherein in the mechanical pre-slitting procedure, the steel plate is subjected to two-pass pre-slitting in an edge-to-edge slitting mode of a circle shear; during first-pass pre-slitting, the thickness of the steel plate at the slitting position is reduced to a first thickness; and during second-pass pre-slitting, the steel plate is not cut off, and the thickness of the steel plate at the slitting position is reduced from the first thickness to a second thickness. According to the hot longitudinal cutting production process, two-pass pre-slitting treatment is carried out through the circle shear before the slitting procedure, so that the forming quality of the edges can be improved.
Description
technical field [0001] The invention relates to the field of metallurgy, in particular to a steel plate thermal longitudinal cutting process. Background technique [0002] At present, the slitting of steel plates is usually carried out in the cold state. This is because the slits of steel plates in the hot state often cannot be cut directly, or edge defects such as flashes and pits are easy to occur during cutting, but the slitting of steel plates in the hot state It can be carried out directly after the steel plate is rolled, and can make full use of the waste heat of rolling, and the efficiency is higher; The edge quality of the post-formed steel plate is not satisfactory. Contents of the invention [0003] In view of the deficiencies of the prior art described above, the object of the present invention is to provide a hot slitting production process for steel plates to improve the edge quality of formed steel bars and reduce edge defects. [0004] In order to achieve ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00B23P23/04
CPCB23P15/00B23P23/04
Inventor 李宏图王洪春王式研王海隆
Owner CISDI RES & DEV CO LTD